Other Information (Tables)

12 Months Ended

Dec. 31, 2015

Cash Flow Information and Other Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

	Year Ended December 31,
(In millions)	2015		2014		2013
Supplemental disclosures of cash flow information:
Cash paid for interest (net of interest capitalized)	$	31.0	$	31.6	$	27.1
Cash paid for income taxes (net of refunds received)	$	239.1	$	370.0	$	137.3

Other Reportable Information

	December 31,
(In millions)	2015		2014
Other reportable information:
Unbilled receivables included in receivables	$	638.4	$	804.3
Trading securities included in investments	$	28.4	$	35.8
Net capitalized software costs included in other assets	$	60.1	$	57.3